WINDING COMPONENT

There is provided a winding component capable of reducing the core temperature compared to the past even in a usage scenario where the amount of core heat generation is great, and whose size and weight may be reduced as a result. The present invention is a winding component including a coil (2) and a pair of upper and lower cores (4, 5) that form a closed magnetic path by surrounding an outer perimeter of the coil (2), the winding component having a bottom surface of the lower core (5) mounted on a housing (1) with a heat dissipation function, where a metal plate (7) having a higher thermal conductivity than the lower core (5) is attached to an outer side surface (6) of the lower core (5).